18601995

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{72949}}^1$

素因数の和:72974

約数の個数: 16

約数和(自身を含む): 31514400

約数和(自身を除く): 12912405

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 72949, 218847, 364745, 1094235, 1240133, 3720399, 6200665, 18601995]

約数ペア:

[(1, 18601995), (3, 6200665), (5, 3720399), (15, 1240133), (17, 1094235), (51, 364745), (85, 218847), (255, 72949)]